Rx 207 was built by the
North British Locomotive Company, Glasgow as
builder's number 20156 of 1913,a joining the highly successful Rx-class
of 4-6-0 mixed-traffic locomotives.

The Rx-class were developed
from the earlier R-class 4-6-0 design of 1886 via adoption of a larger
Belpaire boiler. Rx 207 was one of a number of Rx class
which were also fitted with superheaters.
The Rx-class ultimately grew to 84 examples comprising the 30 original
R-class locos rebuilt to Rx specification, together with a further 54
built new, becoming the South Australian Railway's most numerous class of
broad-gauge steam locomotive. The Rx-class were assigned to both
passenger and freight turns until the arrival of larger locomotives in the
1920's, after which they settled in to branch line, suburban and shunting
roles. In this capacity they lasted to the end of regular SAR steam
operations. a

Rx 207 was retained as a railtour
engine following the withdrawal of steam power in South Australia.
In time it came under the care of the
Steamranger organisation.

Rx 207 was overhauled by Steamranger at their Mt
Barker depot and returned to operation in 2001. It is now a regular
performer on the Steamranger "Cockle Trains" between Goolwa and Victor
Harbour.

The Steamranger Website enthusiast
pages also contains a good history of Rx 207.

This photo was contributed Bruce Ball and shows Rx207 and 520 at Blackwood
around 1990.

This scene cannot be repeated following the
conversion of the interstate route across the Adelaide Hills to standard gauge
in 1996.